Title:
INDUCTOR AND PROTECTION CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2016/152578
Kind Code:
A1
Abstract:
Provided are an inductor with which it is possible to suppress a decrease in inductance without causing magnetic saturation of a magnetic core even under a large current of the order of several 1000 A, such as a surge current, and a protection circuit using the inductor. The inductor comprises an iron-based magnetic core 3 incorporating a main coil 2, with a short-circuited coil 4, in which a coil—winding start is short-circuited to a coil-winding end, disposed in the magnetic core 3 concentrically with the main coil 2, the short-circuited coil having the effect of cancelling out a magnetic field created by an applied current which is applied to the main coil 2, wherein the magnetic core 3 comprises magnetic cores of the same shape which abut one another at an abutting plane 5. The protection circuit comprises a circuit breaker connected between a direct-current power supply and a load, with a current-limiting inductor connected in series with the circuit breaker.
Inventors:
KANBE SHOUGO (JP)
SAKAI KAYO (JP)
SHIMAZU EIICHIROU (JP)
ODA TAKAYUKI (JP)
SAKAI KAYO (JP)
SHIMAZU EIICHIROU (JP)
ODA TAKAYUKI (JP)
Application Number:
PCT/JP2016/057746
Publication Date:
September 29, 2016
Filing Date:
March 11, 2016
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
H01F37/00; H01F27/42
Domestic Patent References:
| WO2014188662A1 | 2014-11-27 | |||
| WO2015015831A1 | 2015-02-05 |
Foreign References:
| JP2005005287A | 2005-01-06 |
Attorney, Agent or Firm:
WAKI, Hikaru et al. (JP)
Wake Light (JP)
Wake Light (JP)
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